adaptations

amphibians                                                                                                                                           

cell (wall, membrane, cytoplasm, nucleus)

condensation

earth's layers (crust, mantle, core)

edible  (parts of plants

endangered                                                                                       

erosion         

evaporation

friction                                                                                     

gravity

heredity         

lunar                                                

mammals                                                                         

mixture/solution

moon phases (correct sequence)

parallel circuit                                                     

pitch                                                                                      

precipitation

renewable / non-renewable                                                                

reptiles                                                                                                  

series circuit                                                        

simple machines

solar energy                                                                             

threatened                                                                                   

thriving                                                                    

traits / characteristics